Safety razor



jam. 9, 1934-. J. D. GARRETSON fi SAFETY RAZOR I Filed Sept. 21, 1931 mOa a @a J INVENTOR. q" 24 JOHN D, GAmazTson BY Q TORNE YS.

Patented Jan. 9, 1934 UNITED STATES PATENT OFFICE Application September 21, 1931 Serial No, 563,940

4 Claims.

This invention relates to a safety razor.

It is well known in connection with safety razors that most of the same include a head provided with a blade seat and clamping member between which elements the blade is interposed. A suitable handle is provided in associationwith the head and suitable means is also provided-for retaining the whole in applied position.

The primary object of this invention is to pro vide a safety razor, the parts of which can be cleaned without necessitating the disassembly of all of the parts of the razor, and without the removal of the clamping member, the blade, and handle.

Another object of the invention is the provision of a safety razor, the clamping member or holder of which may be fixedly held in spaced relation above the razor seat to allow the cleaning of the parts without removing the clamping member or the blade, the clamping member being also supported so as to allow the turning of the same into a tilted position to permit the replacement of the razor blade, without disassembly of the entire safety razor.

Other objects and advantages are to provide a safety razor that will be superior in point of simplicity, inexpensiveness of construction, positiveness of operation, and facility and convenience in use and general efiiciency.

Inthis specification and the annexed drawing, the invention is illustrated in the form considered to be the best, but it is to be understood that the invention is not limited to such form, because it may beembodied in other forms; and it 35 is also to be understood that in and by the claims following the description, it is desired to cover the invention in whatsoever form it may be embodied.

The invention is clearly illustrated in the accompanying drawing wherein,

Fig. 1 is a vertical cross section through a safety razor constructed in accordance with my invention.

Fig. 2 is a plan View of the safety razor shown in Fig. 1.

Fig. 3 is an end elevation, partly in section, or the razor shown in Fig. 1, showing the parts in disassembled position.

Fig. 4 is a fragmental end view or" the safety razor head, showing the blade cap in a tilted 50 position.

Fig. 5 is a side elevation of the razor blade head showing the blade seat, blade and cap in assembled position.

Fig. 6 is an end elevation of Fig. 5.

Fig. 7 is a plan view of the blade.

Fig. 8 is a cross sectional view taken through Fig. 1 on the line 8-8.

Fig. 9 is a section of Fig. 1, taken on the line 99.

In detail the construction illustrated in the m drawing includes a safety razor formed of the head 6 and handle '7. The head 6 consists of a substantially concave-convex blade seat 8, from the center of the bottom side of which extends a hollow handle 7. The razor blade 9 is adapted 5 to be positioned on the upper convex side of the seat 8. The longitudinal side edges of the blade seat 8 are provided with open troughs or slots 11 therethrough, said slots being closed by a web 11 adjacent the center thereto to provide a rest- 7 ing place for the edges of the razor blade immediately adjacent the slot 9', provided through said razor blade 9. A clamping member or cap 12 fits over the convex upper side of the blade seat 8, to hold the razor blade 9 in place on the seat 8.

The handle '7 on the blade seat is open throughout the entire length thereof, the upper portion of the opening 13 immediately adjacent and below the blade seat, being ovular or rectangular in cross section, and the balance of the central opening 14 adjacent the opposite end of the handle, being circular in cross section. The differences in cross sections of the opening through the handle 7 thus provide a shoulder 15 within the said handle, which shoulder acts as a stop to limit the lengthwise movement of a stem piece 16 which is related to the under side of the blade cap 12.

The blade cap 12 on its under convex face' o is provided with a lug 17 extended therefrom, said lug being substantially rectangular in cross section to slidably fit within the bore of the handle. The upper end of the stem piece 16 is bifurcated to engage opposite sides of the projection 17, and is pivotally secured thereto by the pin 18. Thus, when the cap stem 16 is extended above the upper convex side of the blade seat, as shown in Figs. 3 and 4, the cap 12 is free to be swung over throughout an arc of 180, toward either one of the longitudinal'sides of the blade seat. The stem 16 immediately below the cap 12 is provided with a reduced portion 19 which is of a thickness slightly less than the width of the slot 9' through the blade 9. In order to position the razor blade 9 on the seat, the cap 12 and cap stem 16 are projected into the extended position shown in Fig. 3. The ends of the blade are then grasped by the fingers, and the slotted portion 9 of the blade is moved in past the reduced porof the handle 7.

tion 19 of the stem, to a point where the enlarged aperture 9" in the said blade registers with the stem 16. The stem is then free to be dropped downwardly in the handle to a point where the cap 12 will engage the upper side of the blade. The lower end of the cap stem 16 is provided with a circular shaft 20 thereon and the extreme end of said shaft 20 is reduced in diameter and threaded as at 21. The nut 22 is adapted to be screwed onto the threaded end of the said shaft. The nut 22 serves to engage the inner shoulders 15 in the handle 7 and to limit the outward sliding movement of the cap and cap stem. When the cap is in a position "of contact with the blade on the blade seat, the threaded end 21 of the stem shaft is engageable with a threaded opening 23 arranged in a bushing 24 rotatably mounted on the exterior of the free end of the handle 7. The bushing 24 is provided with pins 25 there-in, extending into an annular groove 26 on the outside By rotating the bushing 24 around the handle when engaged with the threaded end of the shaft 20, the cap is drawn tightly down against the blade to hold the blade in contact with the blade seat and to position the cutting edges of the blade over the longitudinal slots 11 on the opposite sides of the blade seat.

It is to be noticed that the blade 9 is provided with a slot on one side thereof extending in from one of the cutting edges, and in order to prevent a possible contact of the edges of the cutting blade adjacent said slot, with the face during a shaving operation, I have provided a slight enlargement 2'7 on one side of the blade seat, against which the edge of the blade will abut so that said enlargement 27 will cover up the entrance into the slot 9'.

. The ovular or rectangular opening 9" in the blade 9 serves, when engaged with the cap stem 16, to hold the blade in a position on the blade seat so that the cutting edges of the said blade .will lie in proper shaving position over the slots through the blade seat. In a similar manner, the cross sectional shape of the cap stem 16 holds lthe cap in a set non-rotating position on the blade seat.

By releasing the bushing 24 on the end of the handle from the cap stem, it is possible to lift'the cap away from contact with the blade, thereafter the cap may be swung over to either one side or the other of its longitudinal axes, thus blade seat; a blade having a slot extended in from the cutting edge thereof; means on the seat to cover the entrance to the blade slot; a cap to flex and hold the blade on the seat; a stem on the cap adapted to be extended through the blade and seat to hold the blade between the cap and seat, said stem having a portion of the length thereof reduced to receive the slotted blade thereon; and means on the seat to engage said stem.

2. In a safety razor, a convex blade seat; a blade having cutting edges on opposite sides thereof, and. a slot extended in from one of said cutting edges; means on the seat to cover the entrance to the slot; a concave blade cap to flex the blade onto the seat; a hollow handle extended from the under side of the seat; a stem connected to the blade cap and slidably confined in the handle to removably secure the cap in place to engage said blade rearwardly of and immediately adjacent its cutting edges to hold said razor blade between the seat and cap, and the stem having a portion of the length thereof reduced in width to receive the slotted blade thereon; and means on the handle to detachably engage the cap stem to hold the blade cap in contact with the blade.

3. A safety razor consisting of a convex blade seat; a handle on the seat having a central bore therein substantially rectangular in cross section; a blade having a slot extended in from a cutting edge thereof; means on the seat to cover the entrance to the slot; a concave cap to flex and hold the blade on the seat; and a stem on the cap having a cross-section complementing the bore in the handle and adapted to be slidably-confined therein, whereby the cap is movable in a defined path at all times relative to the blade seat, said stem having a portion of the length thereof reduced in section to receive the slotted portion of the blade thereon, when the cap stem is extended from the blade seat, said reduced portion of the stem being concealed within the handle when the cap and blade seat are in contact.

4. A safety razor consisting of a convex blade seat having an opening therein; a tubular handle connected to the under side of the seat in registry with an opening through the seat; a concave blade cap complementing the seat on the upper side thereof having a stem on the under sidei thereof slidably guided in the tubular handle, said stem having a portion of the length thereof reduced in cross-section; a flexible blade to be confined between the cap and seat having a slot extended inwardly from an edge thereof into an enlarged recess to permit the blade to be passed onto the reduced portion of the stem when the cap is spaced from the blade seat to permit the stem to be received in the enlarged recess in the blade; and means on the handle engageable with the stem to urge the cap into contact with and to flex the blade on the seat.

JOHN D. GARRETSO N. 

